KR20110066893A - Method for representing haptic information and system for transmitting haptic information through separating a sensory information - Google Patents

Abstract

PURPOSE: A tactile information expression method and a tactile information transmitting system through the division of sensory information are provided to offer multimedia which is more real to a user by appropriately giving a haptic effect to an audio video stream. CONSTITUTION: Tactile data about the effect of manual and active movement is defined(S1000). The component of the tactile data about the effect of the manual movement is described(S1100). The component of the tactile data about the effect of the active movement is described. The effect of the manual movement is offered on the basis of the component of the tactile data about the effect of the described manual movement(S1200). The effect of the active movement is offered on the basis of the component of the tactile data about the effect of the described active movement. If a user equips a tactile device, the effect of the manual movement offers tactile information through the tactile device to the user.

Description

Method for representing haptic information and system for transmitting haptic information through separating a sensory information}

The present invention relates to tactile technology, and more particularly, to a tactile information presentation method and transmission system for adding a tactile sense to an audio-video multimedia to make a user feel real.

Conventional audio-video based standards such as MPEG have been developed, but this is merely to convey visual and auditory sense, and does not provide an effect that a user can feel immersive by touch. In addition, although haptic technology is partially employed in mobile phones, medical devices, and games, many technical problems need to be solved in order to apply haptic technology to an audio-video stream. It is difficult to apply to audio / video streams and various virtual environments.

SUMMARY OF THE INVENTION The present invention has been made in an effort to provide a tactile information presentation method that provides a more realistic multimedia to a user by appropriately applying a haptic effect to an audio-video stream.

Another technical problem of the present invention is to provide a tactile information transmission system that provides a user with more realistic multimedia by appropriately applying a haptic effect to an audio-video stream.

The technical problems of the present invention are not limited to the above-mentioned technical problems, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a tactile information presentation method through division of sensory information, including: tactile sense including multimedia information including audio and video, and tactile sense and force corresponding to the multimedia information. To generate scene descriptors to set the temporal position of information, object data is generated, the generated object data is encoded, the encoded information is multiplexed into a single stream file, and used by the tactile device and the sense device. A method of representing tactile information, the method comprising: defining force data relating to the effects of passive movement and force data relating to the effects of active movement, describing the components of the sense of force data relating to the effects of passive movement; Describe the components of the adverse data relating to the effect of the active movement In the step of providing the passive motion effect, based on the component of the sense of force data relating to the effect of the passive motion described above, Providing a motion effect.

According to an aspect of the present invention, there is provided a tactile information transmission system through classification of sensory information, the multimedia information including audio and video and a tactile sense and a sense of force corresponding to the multimedia information. Means for generating object data to generate a scene descriptor for setting a temporal position of tactile information, means for encoding the generated object data, means for multiplexing the encoded information into a single stream file, a haptic device, and A tactile information representation system comprising a force sensing device, comprising: means for defining force data relating to the effects of passive motion, which is the force information, and force data relating to the effects of active motion, and components of the force data relating to the effects of passive motion Means for describing an adverse effect on the effect of the active movement Means for describing the components of the data, means for providing the passive movement effect, based on the components of the sense of force data relating to the effects of the passive motion described above, and components of the force data for the effects of the described active movement On the basis of this, means for providing the active movement effect.

By appropriately applying a haptic effect to the audio-video stream, it is possible to provide a tactile information presentation method that provides a more realistic multimedia to the user.

1 is a view showing a tactile device including a driver according to an embodiment of the present invention.
2 is a perspective view of an apparatus for providing a sense of force according to an embodiment of the present invention.
3 is a diagram illustrating a driver array and a tactile video corresponding thereto according to an embodiment of the present invention.
4 is a diagram illustrating an example of generating a tactile video based on a video.
5 is a diagram illustrating an example of a MovieTexture node of a scene descriptor in MPEG-4.
6 is a diagram illustrating a TactileDisplay node for representing tactile information.
FIG. 7 illustrates a TactileDisplay node connected to a MovieTexture node to define a tactile video object.
8 is a diagram illustrating a TactileDisplayTexture node for representing tactile information.
9 and 10 are diagrams illustrating a Kinesthetic node for expressing feeling information.
11 is a block diagram of a tactile information transmission system according to an embodiment of the present invention.
12 is a flowchart of a tactile information transmission method according to an embodiment of the present invention.
13 is a flowchart of a process in which active adverse data is provided to a user.
14 is a flow chart of a process in which manual adverse data is provided to a user.

Advantages and features of the present invention, and methods for achieving them will be apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various forms. The embodiments of the present invention make the posting of the present invention complete and the general knowledge in the technical field to which the present invention belongs. It is provided to fully convey the scope of the invention to those skilled in the art, and the present invention is defined only by the scope of the claims. Like reference numerals refer to like elements throughout.

References to elements or layers "on" other elements or layers include all instances where another layer or other element is directly over or in the middle of another element. On the other hand, when a device is referred to as "directly on", it means that it does not intervene with another device or layer in between. Like reference numerals refer to like elements throughout. "And / or" includes each and all combinations of one or more of the items mentioned.

Although the first, second, etc. are used to describe various components, these components are of course not limited by these terms. These terms are only used to distinguish one component from another. Therefore, of course, the first component mentioned below may be a second component within the technical spirit of the present invention.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. As used herein, "comprises" and / or "comprising" does not exclude the presence or addition of one or more other components in addition to the mentioned components.

Unless otherwise defined, all terms (including technical and scientific terms) used in the present specification may be used in a sense that can be commonly understood by those skilled in the art. In addition, the terms defined in the commonly used dictionaries are not ideally or excessively interpreted unless they are specifically defined clearly.

The spatially relative terms " below ", " beneath ", " lower ", " above ", " upper " It may be used to easily describe the correlation of a component with other components. Spatially relative terms are to be understood as including terms in different directions of components in use or operation in addition to the directions shown in the figures. For example, when inverting an element shown in the figures, an element described as "below" or "beneath" of another element may be placed "above" another element . Thus, the exemplary term "below" can encompass both an orientation of above and below. The components can be oriented in other directions as well, so that spatially relative terms can be interpreted according to the orientation.

1 is a view showing a haptic device including a driver. 2 is a diagram illustrating a reverse device.

1 and 2, the tactile device 100 includes a tactile display 120, 130, a driver 200, a device transceiver 350, and a device specification DB 400. In addition, the desensitization device 150 may be composed of a plurality of actuators (not shown) for presenting the desensitization information to the user.

The tactile sense may be roughly classified into tactile information including tactile information including vibration, heat, and current, and sensation including tactile information including force, torque, and stiffness. The information about the tactile feeling and dysphoria is also called sensory information. In addition, the device for presenting the tactile feeling is a haptic device, and the device for presenting the sensation is a feeling sensation device, which can be referred to as a tactile device including the tactile device and the sensitizing device.

In addition, the sense of force may be classified into the sense of force data relating to the effects of passive movement and the sense of energy relating to the effects of active movement. This division is defined based on the user's side, and the effect of manual movement means that when the user mounts the haptic device, the pre-generated tactile information is provided to the user through the haptic device. On the other hand, the active movement effect means that when a user equipped with a haptic device touches an object with his or her will, tactile information set on the object is provided through the haptic device.

The tactile presentation units 120 and 130 include left and right tactile presentation units, and the tactile presentation units 120 and 130 may include a plurality of drivers 200. The tactile presentation units 120 and 130 may be implemented in a glove form and may be worn by a user. However, the present invention is not limited thereto and may be provided in various forms. Depending on the form for the tactile presentation, the tactile presentation units 120 and 130 may be implemented to be worn on the head in the form of a hat in addition to the form of gloves and shoes, or to be attached to the arms or legs or the back or the waist.

The driver 200 may be disposed in the tactile presentation units 120 and 130, and may be formed by a vibrotactile stimulation method or a pneumatic tactile stimualation method. The driver may be composed of an eccentric motor, a linear motor, a voice coil, an ultrasonic motor, or a piezoelectric element in the case of the vibration tactile method, and a nozzle type or a pneumatic membrane for supplying air in the case of the air tactile method. It may be made in the form.

The device controller 300 controls the driver 200. The driving signal generated by the main controller (not shown) in the compositor 776 is received, and thus the operation of the driver 200 is controlled.

The device transceiver 350 transmits and receives a control signal for controlling the device and transmits the control signal to the device controller 300.

The device specification DB 400 serves to store information about the tactile / sensitizing devices 100 and 150. It is referred to as a haptic device including a force-sensing device 150 for presenting force, torque, and the like, and a tactile device 100 for presenting vibration, heat, current, and the like. That is, the device specification DB 400 stores information about the tactile device 100, 150.

In the case of the haptic device 100, the device specification DB 400 includes a type of haptic device, a unit corresponding to the tactile device presented by the haptic device, a maximum / minimum intensity presented by the haptic device, and a horizontal direction of the tactile device. The number of drivers, the number of drivers in the vertical direction arranged in the haptic device, the horizontal gap between the drivers, the maximum interval of drive in the vertical direction between the drivers, and the number of intensity levels presented by the haptic device. .

In the case of the force-sensing device 150, it includes a unit and a work space for the maximum / minimum force / torque / stiffness, degrees of freedom, force / torque / stiffness that the force-sensing device provides to each axis, wherein the form of degrees of freedom is X / Y / Z direction independent translation / rotational motion is allowed or not, and the shape of the work space means the range in which the deflection device can perform translational and rotational motion. The range in which the deflector can translate and rotate can be defined in mm as the maximum range in which the deflector can translate in the X / Y / Z axis. The maximum range that can be rotated about an axis can be defined as the degree of roll / pitch / yaw angle. However, the unit is not limited to the above-mentioned unit.

In addition, the force-sensing device may be defined separately from the force-sensitive information on the passive movement and the force-sensitive information on the active movement. In the case of the manual movement, the effect of the manual movement described in the manual sensitization data description unit 450 at the point in time when the manual sensitization information generated by the manual sensitization data generator 717 together with the multimedia information is planned regardless of the user's intention. It is provided to the user through the sensitization device 774 based on the components of the sensitization data for.

On the other hand, in the case of active movement, the user wearing the reverse device 774 must touch the object according to his will, so that the components of the reverse data on the effect of the active movement described in the active reverse data description unit 450 can be described. Based on the active sensitization information is provided to the user through the sensitization device 774.

The components of the sense data relating to the effect of passive withdrawal include the trajectory of the reverse device, the data update rate of the reverse device, the force provided by the reverse device and the torque provided by the reverse device.

Here, the trajectory of the reverse device refers to the position and direction in which the reverse device moves. This trajectory comprises three positions (Px, Py, Pz) and three directions (Ox, Oy, Oz), the position can be expressed in millimeters (mm), and the direction can be expressed in degrees. have. This position and direction data can be updated according to the same update rate.

The data update rate of the reverse device refers to the number of update of reverse data per second. For example, if the update rate is 20, it means that the reverse data is updated 20 times per second.

The force / torque provided by the counterweight device is the force / torque provided by the counterweight device to the user.

Components of the sense of force data relating to the effects of active movement include the data update rate of the force of the reverse device, the force provided by the force of the reverse device and the torque provided by the force of the reverse device.

Here, the data update rate of the reverse device refers to the number of updates per second of the reverse information.

The force / torque provided by the counterweight device refers to three forces (Fx, Fy, Fz) and three torques (Tx, Ty, Tz) on each axis, and the force can be expressed in Newtons (N). The torque can be expressed in Newton millimeters (Nmm).

Here, referring to FIG. 9, the process of transmitting the active sense information further will be described. When the user wears the sense of force device 774 and touches an object, the device controller 300 writes to the active sense of data description unit 450. An active force is provided to the user through the force-sensing device 774 based on the components of the force-sensitive data regarding the active motion effect.

On the basis of these passive data components relating to passive and active movement effects, the reverse device can provide a sense of force to the user.

The tactile video 600, force data, and scene descriptor information mapped corresponding to the media (video, audio) information are resized in consideration of the specifications of the device stored in the device specification DB 400. It will give you a sense of force. This will be described later.

In addition, the compositor 776 includes a main controller (not shown) for generating a signal for controlling the driver 200 of the tactile device 100, and a main controller including a device transceiver 350 of the tactile device 100. A main transceiver for transmitting a control signal is provided.

The main controller generates a control signal for controlling each driver 200 and transmits the control signal to the device controller 300 through the main transceiver and the device transceiver 350, and the device controller 300 transmits the control signal. Based on the control of the driving of each driver 200. Here, the main transceiver and the device transceiver 350 may be connected by wire or wireless communication.

The driving of each driver 200 can be controlled by specifying the driving strength. Therefore, the tactile information may be displayed to the user by transmitting information on the driving strength to the device controller 300 to each driver 200. The main control unit transmits the information on the driving intensity of each driver to the device control unit. In the present invention, the intensity information on the driving of each driver 200 is transmitted to the main control unit in the form of a tactile video. Each time the frame is changed, each pixel value may be converted and transmitted to the device controller 300.

3 is a diagram illustrating a driver array and a tactile video corresponding thereto.

Referring to FIG. 3, the left tactile presenting unit 120 and the right tactile presenting unit 130 are each provided with 4 × 5 drivers, which can be expressed as a 4 × 10 driver array 500. have. That is, as shown in FIG. 2, the combination of drivers may be represented in the form of a rectangular array. The tactile video 600 includes pixels corresponding to each driver.

Each pixel of the tactile video 600 includes intensity information of the pixel, and the intensity information corresponds to the driving intensity of the driver corresponding to the pixel. When the tactile video 600 is represented as a gray scale black and white video, each pixel has intensity information of 0 to 255. The driver 200 is driven based on this information. For example, the driver corresponding to the white pixel is driven strongly and the driver corresponding to the black pixel vibrates weakly.

When the driver array 500 of the tactile device 100 and the pixels of the tactile video 600 correspond to 1: 1, the intensity of each pixel and the driving intensity of each driver 200 may be matched 1: 1. Can be. However, if the dimension of the tactile video 600 is larger than the dimension of the driver array 500, the size may be resized according to the ratio. That is, when there is a difference between the requested tactile information and the presentable tactile information, the device controller 300 may perform resizing.

The resizing is performed by the device controller 300 using a specification of a device stored in the device specification DB 400. Control information is a concept that includes the device's specifications and user preferences. That is, resizing refers to adjusting / providing tactile information with reference to control information.

For example, if the tactile video 600 has dimensions of 320 × 240 and the driver array 500 of the tactile device 100 has dimensions of 10 × 4, then the tactile video 600 of 320 × 240 pixels is 10. The size of the pixel is adjusted to be 4x1 to correspond to the driver array 500 1: 1. In this case, the intensity information of the scaled tactile video may be represented by averaging the intensity information of the pixel before the scaling.

Since the tactile video 600 is in the same format as a general color or monochrome video, it can be transmitted using a general video encoding and decoding method. Also, the tactile video 600 is composed of a plurality of frames, and the intensity information of the pixels in each frame corresponds to the driving strength of each driver 200 of the tactile presentation device.

In case of dysphoria, the skilled person stores the movement of three degrees of freedom or six degrees of freedom of the tool manipulated in the workspace. In order to store the movement and power of the skilled person, the robot arm with the tool used by the skilled person is used at the end, and each joint of the robot arm has an encoder to obtain the position data of the tool, Torque sensors also determine the force / torque applied to the tool by a skilled person. The force data for force reproduction is then a series of position data and force data and includes the time each data is sampled.

In addition, similarly, the device controller 300 may perform a resizing process by using the information of the reverse device 150 stored in the device specification DB 400. That is, when there is a difference between the required force information and the presentable force information, the device controller 300 may perform resizing. For example, if you want to provide motion information that moves 1 meter in the X-axis direction, but the actual user's equipment is 1/2 the workspace of the required equipment, the scale of all motion information is Each can be delivered to the user after resizing in half in the X, Y, and Z axes. In addition, although the force reversing device 150 requires the user to provide a force of 10 N in the X-axis direction, the actual force reversing device 150 may provide only a force of 5 N in the X-axis direction, depending on the ratio. The amount of force provided by device 150 may be adjusted.

And, looking at the case of the user preferences, for example, the user may not like the temperature of more than 30 degrees, and may not want the current to flow more than 0.5mA. It may also be disliked when the force provided is greater than 5N.

This user preference has priority over device specification information. Therefore, even if the transmitted tactile information is 10N and adjusted to 5N in consideration of the device specification, if the user preference is 3N, the force provided by the haptic device to the user may be 3N. As a result, 10N tactile information was resized to 3N.

4 is a diagram illustrating an example of generating a tactile video based on a video.

Referring to FIG. 4, positioned to the right of an image of a movie is a movie-adaptive tactile video 850 generated by a tactile editing / authoring tool. Shown to the right of this tactile video is a representation of a tactile video corresponding driver array 900. The tactile video 850 generates a tactile editing / writing tool based on the video / audio information by applying a different tactile intensity (0 to 255) for each frame to exactly match the number of video frames.

The generated tactile video is reproduced in accordance with the device standard. More specifically, it is converted and reproduced according to the size of the device as well as the number of tactile strengths the device can provide. For example, the presentation of the tactile video is 256 steps, but if the device can play only 8 steps, the 256 steps are divided into 8 steps to be played.

Looking at the drawing, there is shown a screen in which the actor jumps from right to left. This figure illustrates an example in which the movement of the actor can be transmitted to the user by the touch from the viewpoint of the third-person observer. The tactile video may be authored based not only on the third-person observer's point of view, but also on the first-person main character's viewpoint or tactile background effect viewpoint. In the first frame, when the actor starts to jump, the tactile video is mapped to black, and the driver array presents a weak intensity tactile response corresponding to the mapped color. In the last frame, the moment the actor moves left through a strong jump, the tactile video is mapped to white, and the driver array correspondingly presents a strong intensity tactile.

5 is a diagram illustrating an example of a MovieTexture node of a scene descriptor in MPEG-4. Node tactile information is transmitted along with general media (audio and video) information. Hereinafter, a node structure, a transmission method, and a system for transmitting tactile information expressed in the form of tactile video together with media information will be described.

In MPEG-4, information for representing an object is transmitted through a plurality of elementary streams (ES). The correlation information and link configuration information between the respective elementary streams (ES) are transmitted by an object descriptor defined in MPEG-4.

In order to compose a scene based on MPEG-4, an Initial Object Descriptor (IOD), a Binary Format for Scenes (BIFS), an Object Descriptor, and media data are generally required. An Initial Object Descriptor (IOD) is the first information to be transmitted in order to compose an MPEG-4 scene. It describes the profile and level of each media, and is an ESDescriptor for a Scene Descriptor (BIFS) stream and an Object Descriptor stream. ).

The object descriptor is a set of elementary stream descriptors that describe information about each media data constituting the scene, and provides a connection between the elementary stream (ES) of each media data and the scene description. Here, the scene descriptor (BIFS) is information describing how each object has a relationship in space and time.

In MPEG-4, the Scene Descriptor (BIFS) is provided with a MovieTexture node that defines a video object.

Referring to FIG. 5, in a MovieTexture node, stratTime represents a start time at which a video is played, and stopTime represents a time at which play of a video is stopped. This allows the video to be synchronized with other objects. The url also sets the position of the video.

TactileDisplay node is defined to transmit tactile video using MovieTexture node of such scene descriptor.

6 is a diagram illustrating a TactileDisplay node for representing tactile information. FIG. 7 illustrates a TactileDisplay node connected to a MovieTexture node to define a tactile video object.

6 and 7, according to FIG. 5, the TactileDisplay node is a kind of texture node. In FIG. 6, the "url" field indicates the position of the tactile video, the "stratTime" field indicates the start time, and the "stopTime" field indicates the end time. In other words, define a tactile video object by connecting a MovieTexture node to the texture field of the TactileDisplay node.

In the example of FIG. 6, the tactile video set to "tatile_video.avi" is played in the tactile presentation device from 3 seconds to 7 seconds after being played.

8 is a diagram illustrating a TactileDisplayTexture node for representing tactile information.

Referring to FIG. 8, according to FIG. 7, a scene descriptor (BIFS) of MPEG-4 newly defines a TactileDisplayTexture for transmitting a tactile video. TactileDisplayTexture defines the play start time and stop time of the tactile video file, and the "url" field indicates the location of the tactile video file.

9 and 10 are diagrams illustrating a dysfunction node. Like the tactile node mentioned above, this figure may define an object for the adverse data.

11 is a block diagram of a tactile information transmission system according to another embodiment of the present invention.

Referring to FIG. 11, the tactile information transmission system includes an object data generator 710, an encoder 720, a multiplexer (MUX, 730), a transport channel 740, a demultiplexer (DEMUX, 750), and a decoder ( 760, and a playback unit 770.

The object data generator 710 generates a media (audio, video), and generates, edits, or authors the tactile video and the sense data corresponding to the media. The audio generator 712 stores or generates audio, and the video generator 714 stores or generates video. The tactile video generator 716 generates a tactile video indicating the driving strength of the driver array based on the audio or video.

The tactile video generation in the tactile video generator 716 may be automatically generated according to the type of audio information or video information, or may be generated by a user directly generating the audio or video.

The haptic video generated by the tactile video generator 716 and the sensitized data generated by the sensitized data generator 717 are edited and authored with media (audio and video) information in the editing / authoring unit, and are arranged in accordance with respective time axes. do. Accordingly, the editing / authoring unit generates scene descriptors according to the spatiotemporal position of audio, video, tactile video, and adverse data.

The encoder 720 performs a function of encoding audio, video, tactile video, adverse data, and scene descriptors. Audio is encoded at audio encoder 722 and video is encoded at video encoder 724. On the other hand, since the tactile video corresponds to a kind of black and white video, it can be encoded by a general video encoding method, which is encoded by the tactile video encoder. Diversion data is encoded in Diversion Data Encoder 727.

In addition, the scene descriptor is encoded in the BIFS encoder 728. This encoding is done by MPEG-4 audio and video encoding methods. The information encoded by the encoder unit 720 is multiplexed through a multiplexer to generate a single MP4 file, which is transmitted through the transmission channel 740. However, the encoding method is not limited to the MPEG-4 audio and video encoding method.

In the present invention, the transmission channel 740 should be understood as a concept encompassing wired and wireless communication networks, and may be an IP network, a DMB communication network, or an Internet network.

The MP4 file transmitted through the transmission channel 740 is demultiplexed by the demultiplexer 750 and decoded for each piece of information by the decoder 760. The audio decoder 762 decodes the audio, the video decoder 764 decodes the video, the tactile video decoder 766 decodes the tactile video, the sensed data decoder 767 decodes the sensed data, and the BIFS decoder. 768 decodes the scene descriptor.

The information decoded by the decoder 760 is reproduced by the reproducing unit 770. The reproducing unit 770 includes a compositor 776, an audio-video output device 772, and a tactile presenting device. The compositor 776 constructs objects such as transmitted audio, video, tactile video, and adverse data in time and space using scene descriptor (BIFS) information. Based on this information, the audio-video output device 772 outputs audio and video information, and the tactile device 774 presents tactile information through the driver array. In addition, the desensitization data provides desensitization information through the desensitization device 774.

The tactile presentation device includes a tactile / sensitizing device 774, a device specification DB 400, an active sensation data description unit 450, and a device control unit 300. As mentioned above, the device specification DB 400 stores information on the specification of the tactile / sensitizing device 774, and the device control unit 300 stores the transmitted tactile video information and the sensed data based on the device specification. By means of which the haptic / sensitizing device 774 provides the tactile (feeling / feeling). Here, the information including the characteristics and specifications of the device, which is the specification of the device, may be stored in the device specification DB manually and / or automatically through the control unit. The active sense data description unit 450 describes components of the sense data related to the effects of active movement, and when the user touches an object, the device control unit 300 configures the described sense data about the effects of active movement. The sense of force information corresponding to the touch of the user based on the element is provided to the user through the sense of force device 774.

12 is a flowchart of a tactile information transmission method. This flow chart may also be viewed as a flow chart for a method of transmitting passive adverse data.

Referring to FIG. 12, first, the tactile video generation unit generates a tactile video based on media information such as audio and video, and the sensation data generation unit generates sensitized data (S100).

Each pixel of the tactile video includes an intensity value that represents the driving intensity for each driver of the driver array of the tactile device. The generation of such tactile video can be generated automatically or manually based on audio or video.

In addition, the adverse effect data may be classified into an active mode and a passive mode based on the side of the user (or viewer). First, in the case of the manual mode, the skilled person stores the movement of three degrees of freedom or six degrees of freedom of the tool manipulated in the work space, and generates the sense of force data including a series of positional data and force data for the reproduction of the sense of force. Thereafter, when the user wears the haptic device, the generated feeling information is transmitted to the user.

In the active mode, virtual object tactile characteristics (eg, sofa stiffness and texture) may be automatically or manually generated.

In the editing / authoring unit, the tactile video and the sense of force data are arranged in accordance with the media information and the time axis, and the editing / authoring unit generates a scene descriptor including information about the spatiotemporal position of the media information and the tactile video and the adverse reaction data (S200).

The scene descriptor includes a texture node for tactile video and force data, and a texture node for tactile video and force data includes a start time field and a stopTime field for outputting tactile video and force data, and A url field is included that indicates the location of the tactile video and feel data.

The media information, the tactile video information, the sensed data, and the scene descriptor information are encoded by the encoder unit, and then a stream file is generated through a multiplexer (S300).

The generated stream file is transmitted through a transport channel (S400).

The stream file transmission method should be understood as a concept encompassing wired and wireless communication networks, and may be an IP network, a DMB communication network, or an Internet network.

The transmitted stream file is demultiplexed by the demultiplexer and then decoded by the decoder (S500).

Referring to the scene descriptor information and the device specification information, media information is generated and tactile sense is presented (S600).

The compositor uses scene descriptor information to construct audio, video tactile video and adverse data in time and space, and the audio and video are output from the audio-video output device and the tactile information is presented from the device. In addition, the sense of permeation data is provided in a sense device. Each driver of the driver array is driven through a resizing process in consideration of the intensity value and device specification of each pixel of the tactile video. In addition, the reversing process is performed in consideration of the desensitization information and the device specification to drive the desensitization device.

13 is a flowchart of a process in which active adverse data is provided to a user.

Referring to FIG. 13, first, the components of the sense of force data relating to the effect of active movement are described in the active sense of energy data description unit 450 (S700). The user wears the reverse device and touches the object (S800). Thereafter, the device controller 300 provides active sense information corresponding to the user's touch on the basis of the components of the sense data relating to the effect of the active movement described in operation S900.

14 is a flow chart of a process in which manual adverse data is provided to a user.

Referring to FIG. 14, first, manual force data is generated by the manual force data generator 717 (S1000), and then transmitted to the user in a stream form through multiplexing. On the other hand, in the passive force data description unit 450, the components of the force data relating to the effects of passive motion are described (S1100). Based on the components of the sense of force data relating to the effects of the described passive movement, the user provides the passive sense of force transmitted through the sense of force device (S1200).

Although embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art to which the present invention pertains may implement the present invention in other specific forms without changing the technical spirit or essential features thereof. I can understand that. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

100: tactile device 120,130: tactile display
150: reverse device 200: driver
300: device controller 350: device transceiver
400: Device specification DB 450: Passive / active reverse data technology
500: driver array 600: tactile video
700: tactile information transmission system 710: object data generation unit
712: audio generator 714: video generator
716: tactile video generation unit 717: passive force data generation unit
718: Editing / authoring unit 720: Encoder unit
722: Audio Encoder 724: Video Encoder
726: tactile video encoder 727: negative data encoder
728: BIFS Encoder 730: Multiplexer
740: transmission channel 750: demultiplexer
760: decoder 762: audio decoder
764: Video Decoder 766: Tactile Video Decoder
767: Reverse Data Decoder 768: BIFS Decoder
770: playback unit 772: audio-video output device
774: tactile device 776: compositor
800: video frame 850: tactile video corresponding to the movie
900: tactile video driver array

Claims (10)

Generate object data to generate a scene descriptor for setting a temporal position of multimedia information including audio and video and tactile information including tactile information and numbness corresponding to the multimedia information, and encoding the generated object data In addition, the encoded information is multiplexed to generate a single stream file, and the tactile information representation method through the tactile device and the reverse device,
Defining force data relating to the effects of passive movement and force data relating to the effects of active movement;
Describing a component of the sense of force data relating to the effect of the passive movement;
Describing a component of the adverse data relating to the effect of the active movement;
Providing the passive movement effect, based on components of the sense of force data relating to the effects of the passive movement described above; And
And providing the active movement effect based on components of the sense-of-feel data relating to the effects of the active movement described above. The method of claim 1,
The effect of the manual movement,
And when the user mounts the haptic device, providing the tactile information to the user through the haptic device. The method of claim 2,
A component of the sense of force data relating to the effect of the passive movement is
And a trajectory of the force-sensing device, a data update rate of the force-sensing device, a force provided by the force-sensing device, and a torque provided by the force-sensing device. The method of claim 1,
The effect of the active movement,
And when the user wearing the haptic device touches an object, providing the tactile information set to the object through the haptic device. The method of claim 4, wherein
The component of the sense of force data regarding the effect of the active movement is
And a data update rate of the force relief device, a force provided by the force relief device, and a torque provided by the force relief device. Means for generating object data to generate a scene descriptor for setting a temporal position of multimedia information including audio and video and tactile information including tactile information and numbness corresponding to the multimedia information, and generating the object data; A tactile information presentation system comprising means for encoding, means for multiplexing the encoded information into a stream file, a tactile device and a reverse device;
Means for defining force data relating to the effect of passive motion and force data relating to the effect of active motion, the force information;
Means for describing a component of adverse data relating to the effect of the passive movement;
Means for describing a component of adverse data relating to the effect of the active movement;
Means for providing the passive movement effect, based on components of the sense of force data relating to the effects of the passive movement described above; And
Means for providing the active movement effect, based on components of the sense-of-feel data relating to the effects of the active movement described above. The method of claim 6,
The effect of the manual movement,
And when the user mounts the haptic device, providing the tactile information to the user through the haptic device. The method of claim 7, wherein
A component of the sense of force data relating to the effect of the passive movement is
And a trajectory of the force sensing device, a data update rate of the force monitoring device, a force provided by the force monitoring device, and a torque provided by the force monitoring device. The method of claim 6,
The effect of the active movement,
And when the user wearing the haptic device touches an object, provides the tactile information set in the object through the haptic device. The method of claim 9,
The component of the sense of force data regarding the effect of the active movement is
And a data update rate of the force relief device, a force provided by the force relief device, and a torque provided by the force relief device.

Images